Answer:

Step-by-step explanation:

Sorry, I could do only the first three questions

**Answer:**

**Step-by-step explanation:**

Both variable can be rewritten into polar form:

and

The complex product is equal to:

The resultant expression in rectangular form is:

The correct answer is B.

Can I please have brainliest?

**Answer:**

** First option.**

** Third option.**

** Fourth option. **

**Step-by-step explanation:**

For this exercise is important to remember that equivalent expression have the same value.

Then given the following expression provided in the exercise:

You can find equivalent expression by:

- Changing the position of :

(This matches with the first option)

- Solving the multiplication indicated. Then:

(This matches with the fourth option)

- Writting inside the parentheses:

(This matches with the third option)

8^2+b^2=10^2

64+b^2=100

-64 -64

b^2=36

Square root both sides to get 6^2.